Generally speaking, there's no reason not to update your firmware. In the K-50's case, the update adds/improves compatibility with lenses and accessories launched since 2013, such as the 1.4x teleconverter, the new weather sealed flashes, and HD limiteds.

Generally speaking, there's no reason not to update your firmware. In the K-50's case, the update adds/improves compatibility with lenses and accessories launched since 2013, such as the 1.4x teleconverter, the new weather sealed flashes, and HD limiteds.

I too need to update my K50, I see there have been 2 or 3 since Ver. 1.0 which I have. Do I need to do each one? Or just the latest one and it will take care of the rest? (I think I need to do this because I just got a O-GPS1 unit I want to use)